Tokai Maru & SMS Cormoran Twin Wrecks
Apra Harbor · Guam
The world's only site where a WWI and WWII wreck touch: SMS Cormoran (German merchant raider, scuttled 1917) and Tokai Maru (Japanese freighter, sunk 1943). Both rest on the harbor floor at around 37m. Advanced wreck dive with penetration access to engine rooms and cargo holds, the upper structure reachable near 12m.
Conditions
Depth
12 to 37 m
Advanced depths
Current
Can be moderate
Can pick up on the edge
Visibility
6 to 9 m
Clearest in the calm season
Water
26 to 30°C
Rash guard
Month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water (°C) | 26 | 26 | 26 | 27 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 26 |
| Vis (m) | 7 | 8 | 8 | 8 | 7 | 7 | 6 | 6 | 5 | 6 | 7 | 8 |
| Current | Gentle | Gentle | Gentle | Gentle | Gentle | Gentle | Moderate | Moderate | Moderate | Moderate | Moderate | Gentle |
Your chances of seeing each animal
Green sea turtle
Last confirmed Jun 7, 2026 · 23 records
Very likely
Most dives
Blacktip reef shark
Last confirmed May 25, 2026 · 17 records
Very likely
Most dives
Porites coral
Last confirmed Mar 28, 2026 · 4 records
Likely
About 6 in 10 dives
Giant trevally
Last confirmed Mar 30, 2025 · 1 records
Sometimes
About 1 in 3 dives
Great barracuda
Expected
Known here, not yet in recent logs
Forsten's parrotfish
Expected
Known here, not yet in recent logs
Gear